Oil stove



July 28, 1925. v 1,547,767

I e. H. LENNON 011. STOVE Filed Feb, 1:5, 1925 Patented July 28, 1925, V

UNITED STATES PATENT QF'FICE.

e oneE H. ennon, 0F BALTIMORE, MARYLAND, A-SSIGNOR o NATIONAL ENAMEL.-

mean]; sm rme CO'MLPANY, or NEW roan,

on, STOVE.

Applicationfiled February 13, 192.5. Serial m5. -s,s s s.

To whom it may concern:

Be it known that GEORGE H. LEN voN, a citizen of the United States,residing at Baltimore, in the State of Maryland, has

. the base and wick-burner,the cylinder bemg thus hinged near its bottomso it may be swung backand permit access to the burner and oil fount. I

These oil-heating stoves usually have a spring latch to engagethecylinder andhold it in thevertical position over the burner and base,and awire handle or bail is usually provided at the upper end of thecylinder for lifting the heater from place to place. I

To tilt these cylinders backwardly, it is first necessary to press thespring latch to release the cylinder and then grasp some part of thecylinder or the handle to move the cylinder.

While it is possible to effect these two operations with one hand it isnot always convenient to .do so, particularly if the cylinder is hot butin any event the two operations are separate and distinct and both mustbe performed to move'the cylinder from over the burner and base.

The object of this invention therefore is to provide a combined latchreleasing and cylinderoperating devicewhereby the latch may be releasedand the cylinder moved-in a single movement and with one finger ifdesired.

The invention is illustrated in the 3.000111? panying drawing, whereimwV i i Fig. 1. shows an oil stove in front elevation to which myimproveddevice is attached. a I r Fig. 2. illustrates an enlarged verticalsectional detail through the lower part'o'f the stove. r

Fig, 3; shows a portion of the stove in side elevation to illustrate thelatch release device at one side and the hinge device diametricallyopposite the latch.

Fig. 4:. illustrates in perspective the flared flange about the lowerend of the cylinder and shows the slot therein for the reception of thelatclrrelease device.

Fig. 5 shows the detached releasing lever in perspective. r v I v Fig. Gillustrate's a sectional detail taken on the line 66 of Fig; 2 for thepurpose of showing iowth'e lower end of the latch-bar is held in a slotin the base, and

- Fig. 7. showsa vertical sectional detail through the flange around thebase of the cylinder as the same would appear if viewed on the line 7' 7of Fig. 2. I

In the drawingthe numeral 10 designates thebase of the "portable stovefrom which a base-cylinder 11,extends vertically. It is in this base andbase-cylinder that the usual oil fount with its burner and wick devicesissusta ined, but these play no part in the particular improvementsherein claimed and they are therefore not developed or shown thedrawing.

An upper cylinder 12, is, as usual, supported on the base-cylinder 11,'said upper cylinder having a fiaringornamental flange 18, around 'itslower end which seats on top and projectsover the upper rim edge 14 ofthebase-cylinder. I This ornamental cylinder flange 13 is pivotallyconnected to the base-cylinder by a hinge 15, as shown in Fig. 3,whereby the entire upper cylinder'may be swung back to completelyuncover the top of the lower base-cylinder so that access to the oiltount and burner enclosed in the base may be gained, i l V i N. 1., A CRPOR O 033 N W At the top of the upper cylinder 12, there is a wirehandle 16 by which the stove may be lifted or carried about from placeto place.

In practice it is oonnnon to provide a slot 17, in the ornamental flange18 through which one may look down on the indicator of the oil-fount toascertain the amount of oil in the latter.

As the upper cylinder 12 is pivoted or hinged at 15 to the lowercylinder, it is necessary to provide a latch device that will hold thetwo cylinders in their vertical relation when the stove is in use or islifted or moved from one place to another.

Heretofore an ordinary spring latch-linger has been provided in thelower cylinder so as to project through a slot in the flange 13, of theupper cylinder and by springing outwardly on the upper side of theflange-slot hold the upper and lower cylinders in ver tical relation.

This ordinary form of latch-finger re quired a person to press the latchback, and then move the cylinder after the latch had been released, thusrequiring two operations, and frequently both'hands, to release thelatch and tilt the upper cylinder back.

To avoid this double operation, and to simplify the release of the latchand movement of the upper cylinder, is the object of the presentinvention, as will now be described. I

Extending "vertically in the lower cylinder 11 and close to the annularwall thereof, as clearly shown in Fig.2 of the drawing, there is alatch-bar 18 whose lower end is notched at opposite sides-to produce anarrower central lug 19 and'this lug projects through a slot 20 that isprovided in an annular bottom plate 21 of the base. The lowerprojecting-end 22 of the latch-bar is bent laterally to prevent itswithdrawal up through the slot 20 while the entire weight of thelatch-bar rests upon said plate 21 where the shoulders 23 are formed asthe result of the two side notches, as can be seen in the detail shownin Fig. 6 of the drawing.

A keeper or guide-bracket 24: is attached to the inner side of the lowercylinder 11 near the upper rim-edge thereof and the latch-bar 18,extends freely through this keeper which latter merely serves as a guideto hold the latch-bar against lateral displacement,-the keeper howeverplays no part in'holding the latch-bar in its engaged position as willpresently be more clearly understood.

The upper end of the latch-bar 18 pro jects above the upper edge 14; ofthe lower cylinder and is'turned or folded downwardly whereby to producea hook-shaped catch 25.

The latch-bar 18 therefore is sustained by its lower end on which it mayrock or swing within the limits permitted by the guide orkeeper-bracket.

As hereinbefore stated, the upper cylinder 12 is hinged at 15, to thelower cylinder in order that its flaring flange 13, may seat over andencircle the upper edge 14, of the lower cylinder.

The flaring flange 18 is therefore provided with a slot 26 through whichthe upper catch-end 25 of the latch-bar will project when the uppercylinder is seated on the lower cylinder and when thus seated, the loweredge of the catch may be moved outwardly so as to project over thefront-edge 27 of the flange-slot 26, as shown in Fig. 2 of the drawing-In carrying out my invention I provide means for positively actuatingthe latch-bar to move it to the latching or to the unlatching positionand this means will therefore now be explained.

- When producing the slot 26in the flange l 13 of the upper cylinder, 1provide downturned lugs 28 at opposite sides of the slot.

Over the slot 26 and conforming to the contour of the flange 13, Iprovide a latch actuating-lever'29. This lever has an upwardly-curvingupper end 30 and also has down-turned side lugs 31 at opposite sidesthereof and near said upper end. These lugs extend down into the slot 26of the flange 18, and have position at thesides of the lugs 28 on theflange so that a pintle pin 32, may be passed through all the lugs andthus pivotally sustain thelatch lever 29.

The'lower end of the latchelever 29 ex tends below the lower edge of theflange 13 and has a finger-loop or coil 33 therein and from the pivotlugs 31 to this end is so much greater than the distance from said lugsto the upper end 30 that a preponderance of weight on the lower end willkeep the lever seated on the said flange 18. i

A slot 34: is provided in the latch operating-lever but is so,locatedtherein that the forward edge 35 of this slot will have positionforward of the front edge 27 of the slot 26 in the flange 13,in otherwords the flange-edge 27 under-laps the forward edge 35 of thelatch-lever as is shown in Fig. 2 of the drawing.

By reference to Fig. 2 of the drawing, it will be seen that thecatch-end25 of the latch-bar also projects through the slot 3 1 of thelatch-lever but that said catch does not project over or engage saidlever but merely has its upper end extending through the said slot. Itwill also be notedhowever, that the slot 3 1 of the latchoperating-lever is of such width between its front edge 35 and its rearedge 36 as to almost snugly fit over the catch-end 25 of the latch-bar.This ensures that the said rear edge 36 of the latch-lever slot will besufliciently close to the rear side of the latchelever as to prevent thelatter from swinging backwardly and accidentally disengaging the forwardedge 27 of the slot 26 in flange 13.

Presuming the upper cylinder to be held by the latch as in F ig; 2, theoperation of releasing and moving the upper cylinder is as follows:

The loop or coil 33 of the latch operatinglever may be engaged by onefinger and swung outwardly and at the same time upwardly. This outwardand upward movement of the lever causes the front edge 35 of the slot 34in the lever to swing upwardly and rearwardly thus engaging the frontface of the catch 25.

Obviously, as the front edge 35 of the lever-slot moves upwardly andrearwardly, the rear edge 36 of the same slot will also swing up andrearwardly,.the pivot 32 being the center from which the two slotedgesare swung.

This upward and rearward movement of the two slot edges 3536 causes thecatch end of the latch-bar to swing inwardly and thus become disengagedfrom the edge 27 of the flange 13. I

The upward movement of the lower en of the lever is permitted becausethe upper end of said lever is curved upward and therefore may swingdownwardly as the lower end is raised.

When however, the curved upper end 30 of the actuating lever moves downinto engagement with the flange 13 at the rear of the slot 26, thenindependent movement of the latch operatingdever will be stopped andfurther upward movement of the lever will cause the entire uppercylinder to tilt back on the hinge 15 and cause the flange 13 towithdraw entirely from over .the latch-bar.

Thus it will be seen that by the one lifting n'iovement, the lever 29will first make a preliminary independent move to push the catch to areleased position and a further movement thereof will tilt the uppercylinder, so that by a single operation and with one linger the catchmay be released and the cylinder tilted.

Upon returning the cylinder the latch will simply pass through the slot26 while the lever 29 will rock to allow the catch-end to pass throughthe slot 34, but after passing therethrough, the rear wall or edge 36will engage the rear of the latch-bar and press the same forward untilits catch overhangs the front edge 27 of the flange slot 26, and againlock the upper cylinder in place.

Having described my invention, claim 1. In an oil stove the combinationwith a base of a cylinder normally seated over the base, hinge means atone side of the cylinder for pivotally sustaining it with respect to thebase, a latch normally engaging a part carried by the cylinder to holdthe latter against swinging movement with respect to the base, and anoperating lever independent of' the latch and pivotallyattached to apart of the cylinder so as to have a partial movement independent of thecylinder and a further movement with the cylinder said operating leverhaving position adjacent to the latch'and engaging the latter to releaseit upon its preliminary partial movement.

2. In an oil stove the combination with a base having a. cylinder, of anupper cylinder having a flange around its lower end which normally seatsover the base-cylinder, hinge means for pivotally connecting the upperand lower cylinders, a movable latch on the lowercylinder and normallyengaging the flange on the upper cylinder to hold the latter againstswinging, and an operating lever independent of the latch and pivotedwith respect to the flange of the uppercylinder so as to have a limitedmovement with respect thereto said operating-lever having an edgetoengage and move said latch while its said limited movement is beingmade. I

3. In an oil stove the combination with a base having a cylinder, of amovable latch attached to and projecting from said lower cylinder, anupper cylinder having a flange around its lower end to seat over thebasecylinder said flange being provided with a slot through which thesaid latch projects to engage the flange and hold said uppercylinder inplace, means for pivotally connecting the upper and lower cylinders, andan actuating lever independentof the latch and connected to the flangeofthe upper cylinder said actuating lever having anedge to engage andrelease the latch as said lever is moved.

4. In an oil stove the combination with av base having a cylinder, of amovable'latch attached to and projecting from said lower cylinder, anupper cylinder having a flange around its lower end to seat over thebasecylinder said flange being provided with a slot through which thesaid latch projects to engage the flange, means for pivotally connectingthe upper cylinder with the basecylinder, and a lever device pivotallyattached to the flange of the upper cylinder and having a slot toreceive the upper end of the latch whereby to move the latch and to aidin swinging the upper cylinder.

5. In an oil stove the combination with a base having a cylinder, of amovable latch in the base-cylinder and projecting above the latter, anupper cylinder having a bot tom flange to seat over the base-cylindersaid flange being provided with a slot through which the end of thelatch projects whereby the latch may engage said flange and hold theupper cylinder from tilting, means for h g g he upper cylinder so it canswing With respect to the base-cylinder, a lever pivoted to the flange0f the upper cylinder and extending over the slot in the latter saidlever also having a slot therein Whose rear edge has position at therear of the latch and Whose front edge confronts the front of the saidlatch,the front edge of the lever-slot being spaced from and forward ofthe front edge of the flange-slot whereby prelii'ninary upward movementof 10 the lever will push the latch back over the flange-slot andfurther upward movement of the lever will tilt the upper cylinder on itshinge.

In testimony whereof he aflixes his signature.

GEORGE H. LENNON.

